CN210859652U

CN210859652U - Shock-resistant magnetorheological buffer

Info

Publication number: CN210859652U
Application number: CN201921794334.5U
Authority: CN
Inventors: 陆敬民
Original assignee: Shanghai Jianji Automobile Service Co ltd
Current assignee: Shanghai Jianji Automobile Service Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-26
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a magneto rheological buffer shocks resistance, including cylinder body and piston rod, inside the bottom of piston rod run through the cylinder body and extend to the cylinder body, the bottom fixedly connected with support housing of cylinder body to the equal fixedly connected with gag lever post in both sides between support shells inner wall top and the bottom, two the equal sliding connection in surface of gag lever post has the fly leaf, the utility model relates to a buffer technical field. This magneto rheological buffer shocks resistance combines together magneto rheological buffering and mechanical buffering, and too big when receiving the impact force, magneto rheological buffering stress value reaches when being the biggest, the mechanical buffering atress of bottom continues to cushion, has improved the buffer capacity of this buffer, and the magnetic current flows and produces the damping with spring compression combined action, can prolong buffering time, effectively reduces the impact force, has improved the practicality, and the combined action of two reposition of redundant personnel jar has improved the stress value of this buffer, makes it not fragile, has prolonged life.

Description

Shock-resistant magnetorheological buffer

Technical Field

The utility model relates to a buffer technical field specifically is a magneto rheological buffer shocks resistance.

Background

The traditional buffer device is designed according to typical working conditions and a certain structural technology, and the working characteristics of the buffer, the variability due to the actual working conditions and the error of design calculation and the property of the buffer are preset; the magnetorheological damper has the advantages that ideal working performance can be hardly achieved, the magnetorheological liquid can generate an obvious magnetorheological effect under the action of an external magnetic field, namely the property of the liquid is converted from a liquid state to a similar solid state, the viscosity of the magnetorheological liquid is adjustable, the magnetorheological damper has the characteristics of continuity, reversibility, quick response and easiness in control, can be combined with computer control to realize active control, has a good application prospect in engineering, and the controllable damping rule of the magnetorheological damper is realized by utilizing the characteristic that the viscosity of the magnetorheological liquid is rapidly and controllably changed.

The magneto-rheological buffer generally comprises a buffer device, magneto-rheological liquid and a control system, but the existing shock-resistant magneto-rheological buffer only depends on the flow of the magneto-rheological liquid in a magnetic field to generate damping, has poor shock resistance, often cannot achieve good buffering effect when the buffer bears larger buffering force, even is damaged, so that the application range of the magneto-rheological buffer is greatly reduced, and the practicability is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a magneto rheological buffer shocks resistance has solved that shock resistance is relatively poor, when the buffer bears great buffer power, often can not reach better buffering effect, takes place to damage even, makes magneto rheological buffer's application scope reduce greatly, the lower problem of practicality.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a magneto rheological buffer shocks resistance, includes cylinder body and piston rod, inside the bottom of piston rod runs through the cylinder body and extends to the cylinder body, the bottom fixedly connected with support housing of cylinder body to the equal fixedly connected with gag lever post in both sides between support shells inner wall top and the bottom, two the equal sliding connection in surface of gag lever post has the fly leaf, the both sides at fly leaf top and the equal fixedly connected with first spring in surface that is located two gag lever posts, two the bottom of first spring all with support shells inner wall's bottom fixed connection, the bottom of fly leaf and the center between the support shells inner wall bottom department fixedly connected with second spring, the top fixedly connected with movable rod of fly leaf, the one end that the movable rod was kept away from the fly leaf runs through support housing and cylinder body and extends to the inside of cylinder body.

Preferably, one end of the movable rod, which is located inside the cylinder body, is fixedly connected with a supporting block, and one end of the piston rod, which is located inside the cylinder body, is fixedly connected with a piston.

Preferably, the top parts of the two sides of the surface of the cylinder body are communicated with upper guide pipes, and the bottom parts of the two sides of the surface of the cylinder body are communicated with lower guide pipes.

Preferably, one ends, far away from the cylinder body, of the two upper guide pipes and one ends, far away from the cylinder body, of the lower guide pipes are fixedly connected with shunt cylinders, and the bottoms of the inner walls of the two shunt cylinders are fixedly connected with core rods through insulating blocks.

Preferably, the top end of the core rod penetrates through the shunt cylinder and extends to the outside of the shunt cylinder, and the coil is wound on the surface of the core rod and positioned inside the shunt cylinder.

Preferably, the piston rod is located the outside one end fixedly connected with movable block of cylinder body, two the bottom of reposition of redundant personnel jar is all through the top fixed connection of connecting plate with support housing.

Advantageous effects

The utility model provides a magneto rheological buffer shocks resistance. Compared with the prior art, the method has the following beneficial effects:

(1) the impact-resistant magnetorheological buffer is characterized in that a supporting shell is fixedly connected with the bottom of a cylinder body, limiting rods are fixedly connected with two sides between the top and the bottom of the inner wall of the supporting shell, movable plates are slidably connected with the surfaces of the two limiting rods, first springs are fixedly connected with two sides of the top of the movable plate and the surfaces of the two limiting rods, the bottom ends of the two first springs are fixedly connected with the bottom of the inner wall of the supporting shell, a second spring is fixedly connected with the center between the bottom of the movable plate and the bottom of the inner wall of the supporting shell, a movable rod is fixedly connected with the top of the movable plate, magnetorheological buffering and mechanical buffering are combined, when the impact force is too large, and the stress value of the magnetorheological buffer reaches the maximum value, a piston pushes the movable rod to move, so that the mechanical buffering stress of the bottom is kept, and the buffering, the magnetic fluid flows and the spring compresses to generate damping together, so that the buffering time can be prolonged, the impact force is effectively reduced, and the practicability is improved.

(2) This magneto rheological buffer shocks resistance, keep away from the equal fixedly connected with of one end reposition of redundant personnel jar of cylinder body through two upper catheters and downcomer to the bottom of two reposition of redundant personnel jar inner walls all has the core bar through insulating block fixedly connected with, and the surface of core bar and the inside winding that is located reposition of redundant personnel jar have the coil, and the cylinder body both sides all are provided with reposition of redundant personnel jar, and the combined action of two reposition of redundant personnel jars has improved the stress value of this buffer, makes it not fragile, has prolonged life.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

fig. 3 is a sectional view of the structure of the flow dividing cylinder of the present invention.

In the figure: 1. a cylinder body; 2. a piston rod; 3. a support housing; 4. a limiting rod; 5. a movable plate; 6. a first spring; 7. a second spring; 8. a movable rod; 9. a support block; 10. a piston; 11. an upper duct; 12. a lower conduit; 13. a shunt cylinder; 14. an insulating block; 15. a core bar; 16. a coil; 17. a movable block; 18. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an impact-resistant magnetorheological buffer comprises a cylinder body 1 and a piston rod 2, wherein magnetic fluid is filled in the cylinder body 1, the front side of the cylinder body 1 is communicated with an oil injection pipe for adding lubricating oil into the cylinder body 1 to enable a piston 10 to move more smoothly, one end of the piston rod 2, which is positioned outside the cylinder body 1, is fixedly connected with a movable block 17, the bottom ends of two shunt cylinders 13 are fixedly connected with the top of a supporting shell 3 through a connecting plate 18, the top parts of two sides of the surface of the cylinder body 1 are communicated with upper guide pipes 11, one ends, which are far away from the cylinder body 1, of the two upper guide pipes 11 and the lower guide pipes 12 are fixedly connected with shunt cylinders 13, the top parts of the inner walls of the shunt cylinders 13 are provided with insulating plugs, the bottom parts of the inner walls of the two shunt cylinders 13 are fixedly connected with core rods 15 through insulating blocks 14, the top ends of the core rods 15 penetrate through the shunt cylinders, the coil 16 is wound on the surface of the core rod 15, two ends of the coil 16 are respectively connected with the positive electrode and the negative electrode of an external power supply, when the buffer works, when the magnetic fluid flows in the shunt cylinder 13, the magnetic field generated by electrifying the coil can stop the flow of the magnetic fluid, so as to generate damping and play a role of buffering, the bottoms of two sides of the surface of the cylinder body 1 are respectively communicated with the lower guide tube 12, the bottom end of the piston rod 2 penetrates through the cylinder body 1 and extends into the cylinder body 1, the bottom of the cylinder body 1 is fixedly connected with the supporting shell 3, two sides between the top and the bottom of the inner wall of the supporting shell 3 are respectively and fixedly connected with the limiting rods 4, the limiting rods 4 can play a role of limiting the movable plate 5 and prevent the movable plate 5 from deflecting in the movement process, the movable plates 5 are respectively connected with the movable plates 5 in a sliding manner on the, first spring 6 and second spring 7 atress are compressed, can play the cushioning effect, the bottom of two first springs 6 all with the bottom fixed connection who supports 3 inner walls of casing, center department fixedly connected with second spring 7 between the bottom of fly leaf 5 and the support housing 3 inner wall bottom, the top fixedly connected with movable rod 8 of fly leaf 5, movable rod 8 is located the inside one end fixedly connected with supporting shoe 9 of cylinder body 1, piston rod 2 is located the inside one end fixedly connected with piston 10 of cylinder body 1, the one end that fly leaf 5 was kept away from to movable rod 8 runs through support housing 3 and cylinder body 1 and extends to the inside of cylinder body 1.

When the movable block 17 is used, the movable block 17 is impacted, the piston rod 2 pushes the piston 10 to move, the piston 10 moves to extrude the magnetic fluid in the cylinder body 1 to flow into the two shunt cylinders 13 through the lower guide pipe 12, meanwhile, the coil 16 is electrified, a radial magnetic field is generated around the coil 16, the magnetic fluid flowing into the shunt cylinders 13 is changed into a sticky plastic body from a Newton body under the influence of the magnetic field, the flow resistance of the fluid is increased, and the buffer effect is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a magnetorheological damper shocks resistance, includes cylinder body (1) and piston rod (2), the bottom of piston rod (2) runs through cylinder body (1) and extends to inside cylinder body (1), its characterized in that: the bottom of the cylinder body (1) is fixedly connected with a supporting shell (3), two sides between the top and the bottom of the inner wall of the supporting shell (3) are fixedly connected with limiting rods (4), the surfaces of the two limiting rods (4) are both connected with movable plates (5) in a sliding manner, the two sides of the top of the movable plate (5) and the surfaces of the two limiting rods (4) are fixedly connected with first springs (6), the bottom ends of the two first springs (6) are fixedly connected with the bottom of the inner wall of the supporting shell (3), a second spring (7) is fixedly connected at the center between the bottom of the movable plate (5) and the bottom of the inner wall of the supporting shell (3), the top fixedly connected with movable rod (8) of fly leaf (5), the one end that fly leaf (5) were kept away from in movable rod (8) runs through support housing (3) and cylinder body (1) and extends to the inside of cylinder body (1).

2. An impact resistant magnetorheological damper as in claim 1 wherein: the movable rod (8) is located one end fixedly connected with supporting shoe (9) inside cylinder body (1), piston rod (2) is located one end fixedly connected with piston (10) inside cylinder body (1).

3. An impact resistant magnetorheological damper as in claim 1 wherein: the top of the two sides of the surface of the cylinder body (1) is communicated with an upper guide pipe (11), and the bottom of the two sides of the surface of the cylinder body (1) is communicated with a lower guide pipe (12).

4. An impact resistant magnetorheological damper as in claim 3 wherein: two the equal fixedly connected with reposition of redundant personnel jar (13) of one end that cylinder body (1) was kept away from to upper catheter (11) and downcomer (12) to the bottom of two reposition of redundant personnel jar (13) inner walls all is through insulating block (14) fixedly connected with core bar (15).

5. An impact resistant magnetorheological damper as in claim 4 wherein: the top end of the core rod (15) penetrates through the shunt cylinder (13) and extends to the outside of the shunt cylinder (13), and a coil (16) is wound on the surface of the core rod (15) and positioned inside the shunt cylinder (13).

6. An impact resistant magnetorheological damper as in claim 4 wherein: the piston rod (2) is located the outside one end fixedly connected with movable block (17) of cylinder body (1), two the bottom of reposition of redundant personnel jar (13) all is through connecting plate (18) and the top fixed connection of support housing (3).